Update PF mailbox for VF support.
Octeon VF driver will be submitted as separate patchset.
v1 -> v2:
- remove separate workqueue task to wait for firmware ready.
instead defer probe when firmware is not ready.
Reported-by: Leon Romanovsky <[email protected]>
- This change has resulted in update of 0001-xxx.patch and
all other patches in the patchset.
Veerasenareddy Burru (9):
octeon_ep: defer probe if firmware not ready
octeon_ep: poll for control messages
octeon_ep: control mailbox for multiple PFs
octeon_ep: enhance control mailbox for VF support
octeon_ep: support asynchronous notifications
octeon_ep: control mbox support for VF stats and link info
octeon_ep: add SRIOV VF creation
octeon_ep: add PF-VF mailbox communication
octeon_ep: add heartbeat monitor
.../net/ethernet/marvell/octeon_ep/Makefile | 3 +-
.../marvell/octeon_ep/octep_cn9k_pf.c | 114 +++--
.../ethernet/marvell/octeon_ep/octep_config.h | 6 +
.../marvell/octeon_ep/octep_ctrl_mbox.c | 318 ++++++++------
.../marvell/octeon_ep/octep_ctrl_mbox.h | 102 +++--
.../marvell/octeon_ep/octep_ctrl_net.c | 404 ++++++++++++------
.../marvell/octeon_ep/octep_ctrl_net.h | 196 +++++----
.../marvell/octeon_ep/octep_ethtool.c | 12 +-
.../ethernet/marvell/octeon_ep/octep_main.c | 246 ++++++++---
.../ethernet/marvell/octeon_ep/octep_main.h | 62 ++-
.../marvell/octeon_ep/octep_pfvf_mbox.c | 305 +++++++++++++
.../marvell/octeon_ep/octep_pfvf_mbox.h | 126 ++++++
.../marvell/octeon_ep/octep_regs_cn9k_pf.h | 15 +
.../net/ethernet/marvell/octeon_ep/octep_tx.h | 24 +-
14 files changed, 1427 insertions(+), 506 deletions(-)
create mode 100644 drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.c
create mode 100644 drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.h
base-commit: 7a168f560e3c3829b74a893d3655caab14a7aef8
--
2.36.0
Add support to create SRIOV VFs.
Signed-off-by: Veerasenareddy Burru <[email protected]>
Signed-off-by: Sathesh Edara <[email protected]>
---
v1 -> v2:
* no change
.../ethernet/marvell/octeon_ep/octep_main.c | 50 +++++++++++++++++++
1 file changed, 50 insertions(+)
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
index 069c4d18cf37..d43161d1e38a 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
@@ -1177,11 +1177,61 @@ static void octep_remove(struct pci_dev *pdev)
pci_disable_device(pdev);
}
+static int octep_sriov_disable(struct octep_device *oct)
+{
+ struct pci_dev *pdev = oct->pdev;
+
+ if (pci_vfs_assigned(oct->pdev)) {
+ dev_warn(&pdev->dev, "Can't disable SRIOV while VFs are assigned\n");
+ return -EPERM;
+ }
+
+ pci_disable_sriov(pdev);
+ CFG_GET_ACTIVE_VFS(oct->conf) = 0;
+
+ return 0;
+}
+
+static int octep_sriov_enable(struct octep_device *oct, int num_vfs)
+{
+ struct pci_dev *pdev = oct->pdev;
+ int err;
+
+ err = pci_enable_sriov(pdev, num_vfs);
+ if (err) {
+ dev_warn(&pdev->dev, "Failed to enable SRIOV err=%d\n", err);
+ return err;
+ }
+ CFG_GET_ACTIVE_VFS(oct->conf) = num_vfs;
+
+ return num_vfs;
+}
+
+static int octep_sriov_configure(struct pci_dev *pdev, int num_vfs)
+{
+ struct octep_device *oct = pci_get_drvdata(pdev);
+ int max_nvfs;
+
+ if (num_vfs == 0)
+ return octep_sriov_disable(oct);
+
+ max_nvfs = CFG_GET_MAX_VFS(oct->conf);
+
+ if (num_vfs > max_nvfs) {
+ dev_err(&pdev->dev, "Invalid VF count Max supported VFs = %d\n",
+ max_nvfs);
+ return -EINVAL;
+ }
+
+ return octep_sriov_enable(oct, num_vfs);
+}
+
static struct pci_driver octep_driver = {
.name = OCTEP_DRV_NAME,
.id_table = octep_pci_id_tbl,
.probe = octep_probe,
.remove = octep_remove,
+ .sriov_configure = octep_sriov_configure,
};
/**
--
2.36.0
Monitor periodic heartbeat messages from device firmware.
Presence of heartbeat indicates the device is active and running.
If the heartbeat is missed for configured interval indicates
firmware has crashed and device is unusable; in this case, PF driver
stops and uninitialize the device.
Signed-off-by: Veerasenareddy Burru <[email protected]>
Signed-off-by: Abhijit Ayarekar <[email protected]>
---
v1 -> v2:
* reworked the patch for changes made to preceding patches.
* removed device status oct->status, as it is not required with the
modified implementation.
.../marvell/octeon_ep/octep_cn9k_pf.c | 9 +++++
.../ethernet/marvell/octeon_ep/octep_config.h | 6 +++
.../ethernet/marvell/octeon_ep/octep_main.c | 37 +++++++++++++++++++
.../ethernet/marvell/octeon_ep/octep_main.h | 7 ++++
.../marvell/octeon_ep/octep_regs_cn9k_pf.h | 2 +
5 files changed, 61 insertions(+)
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c b/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c
index 4840133477dc..9c6b2a95bc18 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c
@@ -16,6 +16,9 @@
#define CTRL_MBOX_MAX_PF 128
#define CTRL_MBOX_SZ ((size_t)(0x400000 / CTRL_MBOX_MAX_PF))
+#define FW_HB_INTERVAL_IN_SECS 1
+#define FW_HB_MISS_COUNT 10
+
/* Names of Hardware non-queue generic interrupts */
static char *cn93_non_ioq_msix_names[] = {
"epf_ire_rint",
@@ -249,6 +252,10 @@ static void octep_init_config_cn93_pf(struct octep_device *oct)
conf->ctrl_mbox_cfg.barmem_addr = (void __iomem *)oct->mmio[2].hw_addr +
(0x400000ull * 8) +
(link * CTRL_MBOX_SZ);
+
+ conf->hb_interval = FW_HB_INTERVAL_IN_SECS;
+ conf->max_hb_miss_cnt = FW_HB_MISS_COUNT;
+
}
/* Setup registers for a hardware Tx Queue */
@@ -407,6 +414,8 @@ static int octep_poll_non_ioq_interrupts_cn93_pf(struct octep_device *oct)
octep_write_csr64(oct, CN93_SDP_EPF_OEI_RINT, reg0);
if (reg0 & CN93_SDP_EPF_OEI_RINT_DATA_BIT_MBOX)
queue_work(octep_wq, &oct->ctrl_mbox_task);
+ else if (reg0 & CN93_SDP_EPF_OEI_RINT_DATA_BIT_HBEAT)
+ atomic_set(&oct->hb_miss_cnt, 0);
handled = 1;
}
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_config.h b/drivers/net/ethernet/marvell/octeon_ep/octep_config.h
index f208f3f9a447..df7cd39d9fce 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_config.h
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_config.h
@@ -200,5 +200,11 @@ struct octep_config {
/* ctrl mbox config */
struct octep_ctrl_mbox_config ctrl_mbox_cfg;
+
+ /* Configured maximum heartbeat miss count */
+ u32 max_hb_miss_cnt;
+
+ /* Configured firmware heartbeat interval in secs */
+ u32 hb_interval;
};
#endif /* _OCTEP_CONFIG_H_ */
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
index cd0d77ceb868..751a3a9c576f 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
@@ -903,6 +903,38 @@ static void octep_intr_poll_task(struct work_struct *work)
msecs_to_jiffies(OCTEP_INTR_POLL_TIME_MSECS));
}
+/**
+ * octep_hb_timeout_task - work queue task to check firmware heartbeat.
+ *
+ * @work: pointer to hb work_struct
+ *
+ * Check for heartbeat miss count. Uninitialize oct device if miss count
+ * exceeds configured max heartbeat miss count.
+ *
+ **/
+static void octep_hb_timeout_task(struct work_struct *work)
+{
+ struct octep_device *oct = container_of(work, struct octep_device,
+ hb_task.work);
+
+ int miss_cnt;
+
+ atomic_inc(&oct->hb_miss_cnt);
+ miss_cnt = atomic_read(&oct->hb_miss_cnt);
+ if (miss_cnt < oct->conf->max_hb_miss_cnt) {
+ queue_delayed_work(octep_wq, &oct->hb_task,
+ msecs_to_jiffies(oct->conf->hb_interval * 1000));
+ return;
+ }
+
+ dev_err(&oct->pdev->dev, "Missed %u heartbeats. Uninitializing\n",
+ miss_cnt);
+ rtnl_lock();
+ if (netif_running(oct->netdev))
+ octep_stop(oct->netdev);
+ rtnl_unlock();
+}
+
/**
* octep_ctrl_mbox_task - work queue task to handle ctrl mbox messages.
*
@@ -979,6 +1011,10 @@ int octep_device_setup(struct octep_device *oct)
if (ret)
return ret;
+ atomic_set(&oct->hb_miss_cnt, 0);
+ INIT_DELAYED_WORK(&oct->hb_task, octep_hb_timeout_task);
+ queue_delayed_work(octep_wq, &oct->hb_task,
+ msecs_to_jiffies(oct->conf->hb_interval * 1000));
return 0;
unsupported_dev:
@@ -1004,6 +1040,7 @@ static void octep_device_cleanup(struct octep_device *oct)
octep_delete_pfvf_mbox(oct);
octep_ctrl_net_uninit(oct);
+ cancel_delayed_work_sync(&oct->hb_task);
oct->hw_ops.soft_reset(oct);
for (i = 0; i < OCTEP_MMIO_REGIONS; i++) {
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.h b/drivers/net/ethernet/marvell/octeon_ep/octep_main.h
index ad6d324bd525..beedf8dc841d 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.h
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.h
@@ -286,6 +286,13 @@ struct octep_device {
bool poll_non_ioq_intr;
/* Work entry to poll non-ioq interrupts */
struct delayed_work intr_poll_task;
+
+ /* Firmware heartbeat timer */
+ struct timer_list hb_timer;
+ /* Firmware heartbeat miss count tracked by timer */
+ atomic_t hb_miss_cnt;
+ /* Task to reset device on heartbeat miss */
+ struct delayed_work hb_task;
};
static inline u16 OCTEP_MAJOR_REV(struct octep_device *oct)
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_regs_cn9k_pf.h b/drivers/net/ethernet/marvell/octeon_ep/octep_regs_cn9k_pf.h
index f29c4344fc41..48051e23ef18 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_regs_cn9k_pf.h
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_regs_cn9k_pf.h
@@ -376,5 +376,7 @@
/* bit 0 for control mbox interrupt */
#define CN93_SDP_EPF_OEI_RINT_DATA_BIT_MBOX BIT_ULL(0)
+/* bit 1 for firmware heartbeat interrupt */
+#define CN93_SDP_EPF_OEI_RINT_DATA_BIT_HBEAT BIT_ULL(1)
#endif /* _OCTEP_REGS_CN9K_PF_H_ */
--
2.36.0
Defer probe if firmware is not ready for device usage.
Signed-off-by: Veerasenareddy Burru <[email protected]>
Signed-off-by: Abhijit Ayarekar <[email protected]>
Signed-off-by: Satananda Burla <[email protected]>
---
v1 -> v2:
* was scheduling workqueue task to wait for firmware ready,
to probe/initialize the device.
* now, removed the workqueue task; the probe returns EPROBE_DEFER,
if firmware is not ready.
* removed device status oct->status, as it is not required with the
modified implementation.
.../ethernet/marvell/octeon_ep/octep_main.c | 26 +++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
index 5a898fb88e37..aa7d0ced9807 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
@@ -1017,6 +1017,25 @@ static void octep_device_cleanup(struct octep_device *oct)
oct->conf = NULL;
}
+static u8 get_fw_ready_status(struct pci_dev *pdev)
+{
+ u32 pos = 0;
+ u16 vsec_id;
+ u8 status;
+
+ while ((pos = pci_find_next_ext_capability(pdev, pos,
+ PCI_EXT_CAP_ID_VNDR))) {
+ pci_read_config_word(pdev, pos + 4, &vsec_id);
+#define FW_STATUS_VSEC_ID 0xA3
+ if (vsec_id == FW_STATUS_VSEC_ID) {
+ pci_read_config_byte(pdev, (pos + 8), &status);
+ dev_info(&pdev->dev, "Firmware ready %u\n", status);
+ return status;
+ }
+ }
+ return 0;
+}
+
/**
* octep_probe() - Octeon PCI device probe handler.
*
@@ -1053,6 +1072,13 @@ static int octep_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
pci_enable_pcie_error_reporting(pdev);
pci_set_master(pdev);
+#define FW_STATUS_READY 1
+ if (get_fw_ready_status(pdev) != FW_STATUS_READY) {
+ dev_notice(&pdev->dev, "Firmware not ready; defer probe.\n");
+ err = -EPROBE_DEFER;
+ goto err_alloc_netdev;
+ }
+
netdev = alloc_etherdev_mq(sizeof(struct octep_device),
OCTEP_MAX_QUEUES);
if (!netdev) {
--
2.36.0
Enhance control mailbox protocol to support following
- separate command and response queues
* command queue to send control commands to firmware.
* response queue to receive responses and notifications from
firmware.
- variable size messages using scatter/gather
- VF support
* extend control command structure to include vfid.
* update APIs to accept VF ID.
Signed-off-by: Abhijit Ayarekar <[email protected]>
Signed-off-by: Veerasenareddy Burru <[email protected]>
---
v1 -> v2:
* modified the patch to work with device status "oct->status" removed.
.../marvell/octeon_ep/octep_ctrl_mbox.c | 318 +++++++++-------
.../marvell/octeon_ep/octep_ctrl_mbox.h | 102 ++---
.../marvell/octeon_ep/octep_ctrl_net.c | 349 ++++++++++++------
.../marvell/octeon_ep/octep_ctrl_net.h | 176 +++++----
.../marvell/octeon_ep/octep_ethtool.c | 7 +-
.../ethernet/marvell/octeon_ep/octep_main.c | 80 ++--
6 files changed, 619 insertions(+), 413 deletions(-)
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.c b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.c
index 39322e4dd100..cda252fc8f54 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.c
@@ -24,41 +24,49 @@
/* Time in msecs to wait for message response */
#define OCTEP_CTRL_MBOX_MSG_WAIT_MS 10
-#define OCTEP_CTRL_MBOX_INFO_MAGIC_NUM_OFFSET(m) (m)
-#define OCTEP_CTRL_MBOX_INFO_BARMEM_SZ_OFFSET(m) ((m) + 8)
-#define OCTEP_CTRL_MBOX_INFO_HOST_STATUS_OFFSET(m) ((m) + 24)
-#define OCTEP_CTRL_MBOX_INFO_FW_STATUS_OFFSET(m) ((m) + 144)
-
-#define OCTEP_CTRL_MBOX_H2FQ_INFO_OFFSET(m) ((m) + OCTEP_CTRL_MBOX_INFO_SZ)
-#define OCTEP_CTRL_MBOX_H2FQ_PROD_OFFSET(m) (OCTEP_CTRL_MBOX_H2FQ_INFO_OFFSET(m))
-#define OCTEP_CTRL_MBOX_H2FQ_CONS_OFFSET(m) ((OCTEP_CTRL_MBOX_H2FQ_INFO_OFFSET(m)) + 4)
-#define OCTEP_CTRL_MBOX_H2FQ_ELEM_SZ_OFFSET(m) ((OCTEP_CTRL_MBOX_H2FQ_INFO_OFFSET(m)) + 8)
-#define OCTEP_CTRL_MBOX_H2FQ_ELEM_CNT_OFFSET(m) ((OCTEP_CTRL_MBOX_H2FQ_INFO_OFFSET(m)) + 12)
-
-#define OCTEP_CTRL_MBOX_F2HQ_INFO_OFFSET(m) ((m) + \
- OCTEP_CTRL_MBOX_INFO_SZ + \
- OCTEP_CTRL_MBOX_H2FQ_INFO_SZ)
-#define OCTEP_CTRL_MBOX_F2HQ_PROD_OFFSET(m) (OCTEP_CTRL_MBOX_F2HQ_INFO_OFFSET(m))
-#define OCTEP_CTRL_MBOX_F2HQ_CONS_OFFSET(m) ((OCTEP_CTRL_MBOX_F2HQ_INFO_OFFSET(m)) + 4)
-#define OCTEP_CTRL_MBOX_F2HQ_ELEM_SZ_OFFSET(m) ((OCTEP_CTRL_MBOX_F2HQ_INFO_OFFSET(m)) + 8)
-#define OCTEP_CTRL_MBOX_F2HQ_ELEM_CNT_OFFSET(m) ((OCTEP_CTRL_MBOX_F2HQ_INFO_OFFSET(m)) + 12)
-
-#define OCTEP_CTRL_MBOX_Q_OFFSET(m, i) ((m) + \
- (sizeof(struct octep_ctrl_mbox_msg) * (i)))
-
-static u32 octep_ctrl_mbox_circq_inc(u32 index, u32 mask)
+/* Size of mbox info in bytes */
+#define OCTEP_CTRL_MBOX_INFO_SZ 256
+/* Size of mbox host to fw queue info in bytes */
+#define OCTEP_CTRL_MBOX_H2FQ_INFO_SZ 16
+/* Size of mbox fw to host queue info in bytes */
+#define OCTEP_CTRL_MBOX_F2HQ_INFO_SZ 16
+
+#define OCTEP_CTRL_MBOX_TOTAL_INFO_SZ (OCTEP_CTRL_MBOX_INFO_SZ + \
+ OCTEP_CTRL_MBOX_H2FQ_INFO_SZ + \
+ OCTEP_CTRL_MBOX_F2HQ_INFO_SZ)
+
+#define OCTEP_CTRL_MBOX_INFO_MAGIC_NUM(m) (m)
+#define OCTEP_CTRL_MBOX_INFO_BARMEM_SZ(m) ((m) + 8)
+#define OCTEP_CTRL_MBOX_INFO_HOST_STATUS(m) ((m) + 24)
+#define OCTEP_CTRL_MBOX_INFO_FW_STATUS(m) ((m) + 144)
+
+#define OCTEP_CTRL_MBOX_H2FQ_INFO(m) ((m) + OCTEP_CTRL_MBOX_INFO_SZ)
+#define OCTEP_CTRL_MBOX_H2FQ_PROD(m) (OCTEP_CTRL_MBOX_H2FQ_INFO(m))
+#define OCTEP_CTRL_MBOX_H2FQ_CONS(m) ((OCTEP_CTRL_MBOX_H2FQ_INFO(m)) + 4)
+#define OCTEP_CTRL_MBOX_H2FQ_SZ(m) ((OCTEP_CTRL_MBOX_H2FQ_INFO(m)) + 8)
+
+#define OCTEP_CTRL_MBOX_F2HQ_INFO(m) ((m) + \
+ OCTEP_CTRL_MBOX_INFO_SZ + \
+ OCTEP_CTRL_MBOX_H2FQ_INFO_SZ)
+#define OCTEP_CTRL_MBOX_F2HQ_PROD(m) (OCTEP_CTRL_MBOX_F2HQ_INFO(m))
+#define OCTEP_CTRL_MBOX_F2HQ_CONS(m) ((OCTEP_CTRL_MBOX_F2HQ_INFO(m)) + 4)
+#define OCTEP_CTRL_MBOX_F2HQ_SZ(m) ((OCTEP_CTRL_MBOX_F2HQ_INFO(m)) + 8)
+
+static const u32 mbox_hdr_sz = sizeof(union octep_ctrl_mbox_msg_hdr);
+
+static u32 octep_ctrl_mbox_circq_inc(u32 index, u32 inc, u32 sz)
{
- return (index + 1) & mask;
+ return (index + inc) % sz;
}
-static u32 octep_ctrl_mbox_circq_space(u32 pi, u32 ci, u32 mask)
+static u32 octep_ctrl_mbox_circq_space(u32 pi, u32 ci, u32 sz)
{
- return mask - ((pi - ci) & mask);
+ return sz - (abs(pi - ci) % sz);
}
-static u32 octep_ctrl_mbox_circq_depth(u32 pi, u32 ci, u32 mask)
+static u32 octep_ctrl_mbox_circq_depth(u32 pi, u32 ci, u32 sz)
{
- return ((pi - ci) & mask);
+ return (abs(pi - ci) % sz);
}
int octep_ctrl_mbox_init(struct octep_ctrl_mbox *mbox)
@@ -73,172 +81,228 @@ int octep_ctrl_mbox_init(struct octep_ctrl_mbox *mbox)
return -EINVAL;
}
- magic_num = readq(OCTEP_CTRL_MBOX_INFO_MAGIC_NUM_OFFSET(mbox->barmem));
+ magic_num = readq(OCTEP_CTRL_MBOX_INFO_MAGIC_NUM(mbox->barmem));
if (magic_num != OCTEP_CTRL_MBOX_MAGIC_NUMBER) {
- pr_info("octep_ctrl_mbox : Invalid magic number %llx\n", magic_num);
+ pr_info("octep_ctrl_mbox : Invalid magic number %llx\n",
+ magic_num);
return -EINVAL;
}
- status = readq(OCTEP_CTRL_MBOX_INFO_FW_STATUS_OFFSET(mbox->barmem));
+ status = readq(OCTEP_CTRL_MBOX_INFO_FW_STATUS(mbox->barmem));
if (status != OCTEP_CTRL_MBOX_STATUS_READY) {
pr_info("octep_ctrl_mbox : Firmware is not ready.\n");
return -EINVAL;
}
- mbox->barmem_sz = readl(OCTEP_CTRL_MBOX_INFO_BARMEM_SZ_OFFSET(mbox->barmem));
+ mbox->barmem_sz = readl(OCTEP_CTRL_MBOX_INFO_BARMEM_SZ(mbox->barmem));
- writeq(OCTEP_CTRL_MBOX_STATUS_INIT, OCTEP_CTRL_MBOX_INFO_HOST_STATUS_OFFSET(mbox->barmem));
+ writeq(OCTEP_CTRL_MBOX_STATUS_INIT,
+ OCTEP_CTRL_MBOX_INFO_HOST_STATUS(mbox->barmem));
- mbox->h2fq.elem_cnt = readl(OCTEP_CTRL_MBOX_H2FQ_ELEM_CNT_OFFSET(mbox->barmem));
- mbox->h2fq.elem_sz = readl(OCTEP_CTRL_MBOX_H2FQ_ELEM_SZ_OFFSET(mbox->barmem));
- mbox->h2fq.mask = (mbox->h2fq.elem_cnt - 1);
- mutex_init(&mbox->h2fq_lock);
+ mbox->h2fq.sz = readl(OCTEP_CTRL_MBOX_H2FQ_SZ(mbox->barmem));
+ mbox->h2fq.hw_prod = OCTEP_CTRL_MBOX_H2FQ_PROD(mbox->barmem);
+ mbox->h2fq.hw_cons = OCTEP_CTRL_MBOX_H2FQ_CONS(mbox->barmem);
+ mbox->h2fq.hw_q = mbox->barmem + OCTEP_CTRL_MBOX_TOTAL_INFO_SZ;
- mbox->f2hq.elem_cnt = readl(OCTEP_CTRL_MBOX_F2HQ_ELEM_CNT_OFFSET(mbox->barmem));
- mbox->f2hq.elem_sz = readl(OCTEP_CTRL_MBOX_F2HQ_ELEM_SZ_OFFSET(mbox->barmem));
- mbox->f2hq.mask = (mbox->f2hq.elem_cnt - 1);
- mutex_init(&mbox->f2hq_lock);
-
- mbox->h2fq.hw_prod = OCTEP_CTRL_MBOX_H2FQ_PROD_OFFSET(mbox->barmem);
- mbox->h2fq.hw_cons = OCTEP_CTRL_MBOX_H2FQ_CONS_OFFSET(mbox->barmem);
- mbox->h2fq.hw_q = mbox->barmem +
- OCTEP_CTRL_MBOX_INFO_SZ +
- OCTEP_CTRL_MBOX_H2FQ_INFO_SZ +
- OCTEP_CTRL_MBOX_F2HQ_INFO_SZ;
-
- mbox->f2hq.hw_prod = OCTEP_CTRL_MBOX_F2HQ_PROD_OFFSET(mbox->barmem);
- mbox->f2hq.hw_cons = OCTEP_CTRL_MBOX_F2HQ_CONS_OFFSET(mbox->barmem);
- mbox->f2hq.hw_q = mbox->h2fq.hw_q +
- ((mbox->h2fq.elem_sz + sizeof(union octep_ctrl_mbox_msg_hdr)) *
- mbox->h2fq.elem_cnt);
+ mbox->f2hq.sz = readl(OCTEP_CTRL_MBOX_F2HQ_SZ(mbox->barmem));
+ mbox->f2hq.hw_prod = OCTEP_CTRL_MBOX_F2HQ_PROD(mbox->barmem);
+ mbox->f2hq.hw_cons = OCTEP_CTRL_MBOX_F2HQ_CONS(mbox->barmem);
+ mbox->f2hq.hw_q = mbox->barmem +
+ OCTEP_CTRL_MBOX_TOTAL_INFO_SZ +
+ mbox->h2fq.sz;
/* ensure ready state is seen after everything is initialized */
wmb();
- writeq(OCTEP_CTRL_MBOX_STATUS_READY, OCTEP_CTRL_MBOX_INFO_HOST_STATUS_OFFSET(mbox->barmem));
+ writeq(OCTEP_CTRL_MBOX_STATUS_READY,
+ OCTEP_CTRL_MBOX_INFO_HOST_STATUS(mbox->barmem));
pr_info("Octep ctrl mbox : Init successful.\n");
return 0;
}
-int octep_ctrl_mbox_send(struct octep_ctrl_mbox *mbox, struct octep_ctrl_mbox_msg *msg)
+static int write_mbox_data(struct octep_ctrl_mbox_q *q, u32 *pi,
+ u32 ci, void *buf, u32 w_sz)
+{
+ u32 cp_sz;
+ u8 __iomem *qbuf;
+
+ /* Assumption: Caller has ensured enough write space */
+ qbuf = (q->hw_q + *pi);
+ if (*pi < ci) {
+ /* copy entire w_sz */
+ memcpy_toio(qbuf, buf, w_sz);
+ *pi = octep_ctrl_mbox_circq_inc(*pi, w_sz, q->sz);
+ } else {
+ /* copy up to end of queue */
+ cp_sz = min((q->sz - *pi), w_sz);
+ memcpy_toio(qbuf, buf, cp_sz);
+ w_sz -= cp_sz;
+ *pi = octep_ctrl_mbox_circq_inc(*pi, cp_sz, q->sz);
+ if (w_sz) {
+ /* roll over and copy remaining w_sz */
+ buf += cp_sz;
+ qbuf = (q->hw_q + *pi);
+ memcpy_toio(qbuf, buf, w_sz);
+ *pi = octep_ctrl_mbox_circq_inc(*pi, w_sz, q->sz);
+ }
+ }
+
+ return 0;
+}
+
+int octep_ctrl_mbox_send(struct octep_ctrl_mbox *mbox,
+ struct octep_ctrl_mbox_msg *msgs,
+ int num)
{
- unsigned long timeout = msecs_to_jiffies(OCTEP_CTRL_MBOX_MSG_TIMEOUT_MS);
- unsigned long period = msecs_to_jiffies(OCTEP_CTRL_MBOX_MSG_WAIT_MS);
+ struct octep_ctrl_mbox_msg_buf *sg;
+ struct octep_ctrl_mbox_msg *msg;
struct octep_ctrl_mbox_q *q;
- unsigned long expire;
- u64 *mbuf, *word0;
- u8 __iomem *qidx;
- u16 pi, ci;
- int i;
+ u32 pi, ci, prev_pi, buf_sz, w_sz;
+ int m, s;
- if (!mbox || !msg)
+ if (!mbox || !msgs)
return -EINVAL;
+ if (readq(OCTEP_CTRL_MBOX_INFO_FW_STATUS(mbox->barmem)) !=
+ OCTEP_CTRL_MBOX_STATUS_READY)
+ return -EIO;
+
+ mutex_lock(&mbox->h2fq_lock);
q = &mbox->h2fq;
pi = readl(q->hw_prod);
ci = readl(q->hw_cons);
+ for (m = 0; m < num; m++) {
+ msg = &msgs[m];
+ if (!msg)
+ break;
- if (!octep_ctrl_mbox_circq_space(pi, ci, q->mask))
- return -ENOMEM;
-
- qidx = OCTEP_CTRL_MBOX_Q_OFFSET(q->hw_q, pi);
- mbuf = (u64 *)msg->msg;
- word0 = &msg->hdr.word0;
-
- mutex_lock(&mbox->h2fq_lock);
- for (i = 1; i <= msg->hdr.sizew; i++)
- writeq(*mbuf++, (qidx + (i * 8)));
-
- writeq(*word0, qidx);
+ /* not enough space for next message */
+ if (octep_ctrl_mbox_circq_space(pi, ci, q->sz) <
+ (msg->hdr.s.sz + mbox_hdr_sz))
+ break;
- pi = octep_ctrl_mbox_circq_inc(pi, q->mask);
+ prev_pi = pi;
+ write_mbox_data(q, &pi, ci, (void *)&msg->hdr, mbox_hdr_sz);
+ buf_sz = msg->hdr.s.sz;
+ for (s = 0; ((s < msg->sg_num) && (buf_sz > 0)); s++) {
+ sg = &msg->sg_list[s];
+ w_sz = (sg->sz <= buf_sz) ? sg->sz : buf_sz;
+ write_mbox_data(q, &pi, ci, sg->msg, w_sz);
+ buf_sz -= w_sz;
+ }
+ if (buf_sz) {
+ /* we did not write entire message */
+ pi = prev_pi;
+ break;
+ }
+ }
writel(pi, q->hw_prod);
mutex_unlock(&mbox->h2fq_lock);
- /* don't check for notification response */
- if (msg->hdr.flags & OCTEP_CTRL_MBOX_MSG_HDR_FLAG_NOTIFY)
- return 0;
+ return (m) ? m : -EAGAIN;
+}
- expire = jiffies + timeout;
- while (true) {
- *word0 = readq(qidx);
- if (msg->hdr.flags == OCTEP_CTRL_MBOX_MSG_HDR_FLAG_RESP)
- break;
- schedule_timeout_interruptible(period);
- if (signal_pending(current) || time_after(jiffies, expire)) {
- pr_info("octep_ctrl_mbox: Timed out\n");
- return -EBUSY;
+static int read_mbox_data(struct octep_ctrl_mbox_q *q, u32 pi,
+ u32 *ci, void *buf, u32 r_sz)
+{
+ u32 cp_sz;
+ u8 __iomem *qbuf;
+
+ /* Assumption: Caller has ensured enough read space */
+ qbuf = (q->hw_q + *ci);
+ if (*ci < pi) {
+ /* copy entire r_sz */
+ memcpy_fromio(buf, qbuf, r_sz);
+ *ci = octep_ctrl_mbox_circq_inc(*ci, r_sz, q->sz);
+ } else {
+ /* copy up to end of queue */
+ cp_sz = min((q->sz - *ci), r_sz);
+ memcpy_fromio(buf, qbuf, cp_sz);
+ r_sz -= cp_sz;
+ *ci = octep_ctrl_mbox_circq_inc(*ci, cp_sz, q->sz);
+ if (r_sz) {
+ /* roll over and copy remaining r_sz */
+ buf += cp_sz;
+ qbuf = (q->hw_q + *ci);
+ memcpy_fromio(buf, qbuf, r_sz);
+ *ci = octep_ctrl_mbox_circq_inc(*ci, r_sz, q->sz);
}
}
- mbuf = (u64 *)msg->msg;
- for (i = 1; i <= msg->hdr.sizew; i++)
- *mbuf++ = readq(qidx + (i * 8));
return 0;
}
-int octep_ctrl_mbox_recv(struct octep_ctrl_mbox *mbox, struct octep_ctrl_mbox_msg *msg)
+int octep_ctrl_mbox_recv(struct octep_ctrl_mbox *mbox,
+ struct octep_ctrl_mbox_msg *msgs,
+ int num)
{
+ struct octep_ctrl_mbox_msg_buf *sg;
+ struct octep_ctrl_mbox_msg *msg;
struct octep_ctrl_mbox_q *q;
- u32 count, pi, ci;
- u8 __iomem *qidx;
- u64 *mbuf;
- int i;
+ u32 pi, ci, q_depth, r_sz, buf_sz, prev_ci;
+ int s, m;
- if (!mbox || !msg)
+ if (!mbox || !msgs)
return -EINVAL;
+ if (readq(OCTEP_CTRL_MBOX_INFO_FW_STATUS(mbox->barmem)) !=
+ OCTEP_CTRL_MBOX_STATUS_READY)
+ return -EIO;
+
+ mutex_lock(&mbox->f2hq_lock);
q = &mbox->f2hq;
pi = readl(q->hw_prod);
ci = readl(q->hw_cons);
- count = octep_ctrl_mbox_circq_depth(pi, ci, q->mask);
- if (!count)
- return -EAGAIN;
-
- qidx = OCTEP_CTRL_MBOX_Q_OFFSET(q->hw_q, ci);
- mbuf = (u64 *)msg->msg;
-
- mutex_lock(&mbox->f2hq_lock);
+ for (m = 0; m < num; m++) {
+ q_depth = octep_ctrl_mbox_circq_depth(pi, ci, q->sz);
+ if (q_depth < mbox_hdr_sz)
+ break;
- msg->hdr.word0 = readq(qidx);
- for (i = 1; i <= msg->hdr.sizew; i++)
- *mbuf++ = readq(qidx + (i * 8));
+ msg = &msgs[m];
+ if (!msg)
+ break;
- ci = octep_ctrl_mbox_circq_inc(ci, q->mask);
+ prev_ci = ci;
+ read_mbox_data(q, pi, &ci, (void *)&msg->hdr, mbox_hdr_sz);
+ buf_sz = msg->hdr.s.sz;
+ if (q_depth < (mbox_hdr_sz + buf_sz)) {
+ ci = prev_ci;
+ break;
+ }
+ for (s = 0; ((s < msg->sg_num) && (buf_sz > 0)); s++) {
+ sg = &msg->sg_list[s];
+ r_sz = (sg->sz <= buf_sz) ? sg->sz : buf_sz;
+ read_mbox_data(q, pi, &ci, sg->msg, r_sz);
+ buf_sz -= r_sz;
+ }
+ if (buf_sz) {
+ /* we did not read entire message */
+ ci = prev_ci;
+ break;
+ }
+ }
writel(ci, q->hw_cons);
-
mutex_unlock(&mbox->f2hq_lock);
- if (msg->hdr.flags != OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ || !mbox->process_req)
- return 0;
-
- mbox->process_req(mbox->user_ctx, msg);
- mbuf = (u64 *)msg->msg;
- for (i = 1; i <= msg->hdr.sizew; i++)
- writeq(*mbuf++, (qidx + (i * 8)));
-
- writeq(msg->hdr.word0, qidx);
-
- return 0;
+ return (m) ? m : -EAGAIN;
}
int octep_ctrl_mbox_uninit(struct octep_ctrl_mbox *mbox)
{
if (!mbox)
return -EINVAL;
+ if (!mbox->barmem)
+ return -EINVAL;
- writeq(OCTEP_CTRL_MBOX_STATUS_UNINIT,
- OCTEP_CTRL_MBOX_INFO_HOST_STATUS_OFFSET(mbox->barmem));
+ writeq(OCTEP_CTRL_MBOX_STATUS_INVALID,
+ OCTEP_CTRL_MBOX_INFO_HOST_STATUS(mbox->barmem));
/* ensure uninit state is written before uninitialization */
wmb();
mutex_destroy(&mbox->h2fq_lock);
mutex_destroy(&mbox->f2hq_lock);
- writeq(OCTEP_CTRL_MBOX_STATUS_INVALID,
- OCTEP_CTRL_MBOX_INFO_HOST_STATUS_OFFSET(mbox->barmem));
-
pr_info("Octep ctrl mbox : Uninit successful.\n");
return 0;
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.h b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.h
index 2dc5753cfec6..6ee0345d4436 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.h
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.h
@@ -27,50 +27,39 @@
* |-------------------------------------------|
* |producer index (4 bytes) |
* |consumer index (4 bytes) |
- * |element size (4 bytes) |
- * |element count (4 bytes) |
+ * |max element size (4 bytes) |
+ * |reserved (4 bytes) |
* |===========================================|
* |Fw to Host Queue info (16 bytes) |
* |-------------------------------------------|
* |producer index (4 bytes) |
* |consumer index (4 bytes) |
- * |element size (4 bytes) |
- * |element count (4 bytes) |
+ * |max element size (4 bytes) |
+ * |reserved (4 bytes) |
* |===========================================|
- * |Host to Fw Queue |
+ * |Host to Fw Queue ((total size-288/2) bytes)|
* |-------------------------------------------|
- * |((elem_sz + hdr(8 bytes)) * elem_cnt) bytes|
+ * | |
* |===========================================|
* |===========================================|
- * |Fw to Host Queue |
+ * |Fw to Host Queue ((total size-288/2) bytes)|
* |-------------------------------------------|
- * |((elem_sz + hdr(8 bytes)) * elem_cnt) bytes|
+ * | |
* |===========================================|
*/
#define OCTEP_CTRL_MBOX_MAGIC_NUMBER 0xdeaddeadbeefbeefull
-/* Size of mbox info in bytes */
-#define OCTEP_CTRL_MBOX_INFO_SZ 256
-/* Size of mbox host to target queue info in bytes */
-#define OCTEP_CTRL_MBOX_H2FQ_INFO_SZ 16
-/* Size of mbox target to host queue info in bytes */
-#define OCTEP_CTRL_MBOX_F2HQ_INFO_SZ 16
-/* Size of mbox queue in bytes */
-#define OCTEP_CTRL_MBOX_Q_SZ(sz, cnt) (((sz) + 8) * (cnt))
-/* Size of mbox in bytes */
-#define OCTEP_CTRL_MBOX_SZ(hsz, hcnt, fsz, fcnt) (OCTEP_CTRL_MBOX_INFO_SZ + \
- OCTEP_CTRL_MBOX_H2FQ_INFO_SZ + \
- OCTEP_CTRL_MBOX_F2HQ_INFO_SZ + \
- OCTEP_CTRL_MBOX_Q_SZ(hsz, hcnt) + \
- OCTEP_CTRL_MBOX_Q_SZ(fsz, fcnt))
-
/* Valid request message */
#define OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ BIT(0)
/* Valid response message */
#define OCTEP_CTRL_MBOX_MSG_HDR_FLAG_RESP BIT(1)
/* Valid notification, no response required */
#define OCTEP_CTRL_MBOX_MSG_HDR_FLAG_NOTIFY BIT(2)
+/* Valid custom message */
+#define OCTEP_CTRL_MBOX_MSG_HDR_FLAG_CUSTOM BIT(3)
+
+#define OCTEP_CTRL_MBOX_MSG_DESC_MAX 4
enum octep_ctrl_mbox_status {
OCTEP_CTRL_MBOX_STATUS_INVALID = 0,
@@ -81,31 +70,48 @@ enum octep_ctrl_mbox_status {
/* mbox message */
union octep_ctrl_mbox_msg_hdr {
- u64 word0;
+ u64 words[2];
struct {
+ /* must be 0 */
+ u16 reserved1:15;
+ /* vf_idx is valid if 1 */
+ u16 is_vf:1;
+ /* sender vf index 0-(n-1), 0 if (is_vf==0) */
+ u16 vf_idx;
+ /* total size of message excluding header */
+ u32 sz;
/* OCTEP_CTRL_MBOX_MSG_HDR_FLAG_* */
u32 flags;
- /* size of message in words excluding header */
- u32 sizew;
- };
+ /* identifier to match responses */
+ u16 msg_id;
+ u16 reserved2;
+ } s;
+};
+
+/* mbox message buffer */
+struct octep_ctrl_mbox_msg_buf {
+ u32 reserved1;
+ u16 reserved2;
+ /* size of buffer */
+ u16 sz;
+ /* pointer to message buffer */
+ void *msg;
};
/* mbox message */
struct octep_ctrl_mbox_msg {
/* mbox transaction header */
union octep_ctrl_mbox_msg_hdr hdr;
- /* pointer to message buffer */
- void *msg;
+ /* number of sg buffer's */
+ int sg_num;
+ /* message buffer's */
+ struct octep_ctrl_mbox_msg_buf sg_list[OCTEP_CTRL_MBOX_MSG_DESC_MAX];
};
/* Mbox queue */
struct octep_ctrl_mbox_q {
- /* q element size, should be aligned to unsigned long */
- u16 elem_sz;
- /* q element count, should be power of 2 */
- u16 elem_cnt;
- /* q mask */
- u16 mask;
+ /* size of queue buffer */
+ u32 sz;
/* producer address in bar mem */
u8 __iomem *hw_prod;
/* consumer address in bar mem */
@@ -115,16 +121,10 @@ struct octep_ctrl_mbox_q {
};
struct octep_ctrl_mbox {
- /* host driver version */
- u64 version;
/* size of bar memory */
u32 barmem_sz;
/* pointer to BAR memory */
u8 __iomem *barmem;
- /* user context for callback, can be null */
- void *user_ctx;
- /* callback handler for processing request, called from octep_ctrl_mbox_recv */
- int (*process_req)(void *user_ctx, struct octep_ctrl_mbox_msg *msg);
/* host-to-fw queue */
struct octep_ctrl_mbox_q h2fq;
/* fw-to-host queue */
@@ -146,22 +146,32 @@ int octep_ctrl_mbox_init(struct octep_ctrl_mbox *mbox);
/* Send mbox message.
*
* @param mbox: non-null pointer to struct octep_ctrl_mbox.
+ * @param msgs: Array of non-null pointers to struct octep_ctrl_mbox_msg.
+ * Caller should fill msg.sz and msg.desc.sz for each message.
+ * @param num: Size of msg array.
*
- * return value: 0 on success, -errno on failure.
+ * return value: number of messages sent on success, -errno on failure.
*/
-int octep_ctrl_mbox_send(struct octep_ctrl_mbox *mbox, struct octep_ctrl_mbox_msg *msg);
+int octep_ctrl_mbox_send(struct octep_ctrl_mbox *mbox,
+ struct octep_ctrl_mbox_msg *msgs,
+ int num);
/* Retrieve mbox message.
*
* @param mbox: non-null pointer to struct octep_ctrl_mbox.
+ * @param msgs: Array of non-null pointers to struct octep_ctrl_mbox_msg.
+ * Caller should fill msg.sz and msg.desc.sz for each message.
+ * @param num: Size of msg array.
*
- * return value: 0 on success, -errno on failure.
+ * return value: number of messages received on success, -errno on failure.
*/
-int octep_ctrl_mbox_recv(struct octep_ctrl_mbox *mbox, struct octep_ctrl_mbox_msg *msg);
+int octep_ctrl_mbox_recv(struct octep_ctrl_mbox *mbox,
+ struct octep_ctrl_mbox_msg *msgs,
+ int num);
/* Uninitialize control mbox.
*
- * @param ep: non-null pointer to struct octep_ctrl_mbox.
+ * @param mbox: non-null pointer to struct octep_ctrl_mbox.
*
* return value: 0 on success, -errno on failure.
*/
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c
index 7c00c896ab98..715af1891d0d 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c
@@ -8,134 +8,199 @@
#include <linux/types.h>
#include <linux/etherdevice.h>
#include <linux/pci.h>
+#include <linux/wait.h>
#include "octep_config.h"
#include "octep_main.h"
#include "octep_ctrl_net.h"
-int octep_get_link_status(struct octep_device *oct)
+static const u32 req_hdr_sz = sizeof(union octep_ctrl_net_req_hdr);
+static const u32 mtu_sz = sizeof(struct octep_ctrl_net_h2f_req_cmd_mtu);
+static const u32 mac_sz = sizeof(struct octep_ctrl_net_h2f_req_cmd_mac);
+static const u32 state_sz = sizeof(struct octep_ctrl_net_h2f_req_cmd_state);
+static const u32 link_info_sz = sizeof(struct octep_ctrl_net_link_info);
+static const u32 get_stats_sz = sizeof(struct octep_ctrl_net_h2f_req_cmd_get_stats);
+static atomic_t ctrl_net_msg_id;
+
+static void init_send_req(struct octep_ctrl_mbox_msg *msg, void *buf,
+ u16 sz, int vfid)
{
- struct octep_ctrl_net_h2f_req req = {};
- struct octep_ctrl_net_h2f_resp *resp;
- struct octep_ctrl_mbox_msg msg = {};
- int err;
+ msg->hdr.s.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ;
+ msg->hdr.s.msg_id = atomic_inc_return(&ctrl_net_msg_id) &
+ GENMASK(sizeof(msg->hdr.s.msg_id) * BITS_PER_BYTE, 0);
+ msg->hdr.s.sz = req_hdr_sz + sz;
+ msg->sg_num = 1;
+ msg->sg_list[0].msg = buf;
+ msg->sg_list[0].sz = msg->hdr.s.sz;
+ if (vfid != OCTEP_CTRL_NET_INVALID_VFID) {
+ msg->hdr.s.is_vf = 1;
+ msg->hdr.s.vf_idx = vfid;
+ }
+}
- req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_LINK_STATUS;
- req.link.cmd = OCTEP_CTRL_NET_CMD_GET;
+static int send_mbox_req(struct octep_device *oct,
+ struct octep_ctrl_net_wait_data *d,
+ bool wait_for_response)
+{
+ int err, ret;
- msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ;
- msg.hdr.sizew = OCTEP_CTRL_NET_H2F_STATE_REQ_SZW;
- msg.msg = &req;
- err = octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg);
- if (err)
+ err = octep_ctrl_mbox_send(&oct->ctrl_mbox, &d->msg, 1);
+ if (err < 0)
return err;
- resp = (struct octep_ctrl_net_h2f_resp *)&req;
- return resp->link.state;
+ if (!wait_for_response)
+ return 0;
+
+ d->done = 0;
+ INIT_LIST_HEAD(&d->list);
+ list_add_tail(&d->list, &oct->ctrl_req_wait_list);
+ ret = wait_event_interruptible_timeout(oct->ctrl_req_wait_q,
+ (d->done != 0),
+ jiffies + msecs_to_jiffies(500));
+ list_del(&d->list);
+ if (ret == 0 || ret == 1)
+ return -EAGAIN;
+
+ /**
+ * (ret == 0) cond = false && timeout, return 0
+ * (ret < 0) interrupted by signal, return 0
+ * (ret == 1) cond = true && timeout, return 1
+ * (ret >= 1) cond = true && !timeout, return 1
+ */
+
+ if (d->data.resp.hdr.s.reply != OCTEP_CTRL_NET_REPLY_OK)
+ return -EAGAIN;
+
+ return 0;
}
-void octep_set_link_status(struct octep_device *oct, bool up)
+int octep_ctrl_net_init(struct octep_device *oct)
{
- struct octep_ctrl_net_h2f_req req = {};
- struct octep_ctrl_mbox_msg msg = {};
+ struct pci_dev *pdev = oct->pdev;
+ struct octep_ctrl_mbox *ctrl_mbox;
+ int ret;
+
+ init_waitqueue_head(&oct->ctrl_req_wait_q);
+ INIT_LIST_HEAD(&oct->ctrl_req_wait_list);
+
+ /* Initialize control mbox */
+ ctrl_mbox = &oct->ctrl_mbox;
+ ctrl_mbox->barmem = CFG_GET_CTRL_MBOX_MEM_ADDR(oct->conf);
+ ret = octep_ctrl_mbox_init(ctrl_mbox);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to initialize control mbox\n");
+ return ret;
+ }
+ oct->ctrl_mbox_ifstats_offset = ctrl_mbox->barmem_sz;
+
+ return 0;
+}
- req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_LINK_STATUS;
- req.link.cmd = OCTEP_CTRL_NET_CMD_SET;
- req.link.state = (up) ? OCTEP_CTRL_NET_STATE_UP : OCTEP_CTRL_NET_STATE_DOWN;
+int octep_ctrl_net_get_link_status(struct octep_device *oct, int vfid)
+{
+ struct octep_ctrl_net_wait_data d = {0};
+ struct octep_ctrl_net_h2f_req *req = &d.data.req;
+ int err;
- msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ;
- msg.hdr.sizew = OCTEP_CTRL_NET_H2F_STATE_REQ_SZW;
- msg.msg = &req;
- octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg);
+ init_send_req(&d.msg, (void *)req, state_sz, vfid);
+ req->hdr.s.cmd = OCTEP_CTRL_NET_H2F_CMD_LINK_STATUS;
+ req->link.cmd = OCTEP_CTRL_NET_CMD_GET;
+ err = send_mbox_req(oct, &d, true);
+ if (err < 0)
+ return err;
+
+ return d.data.resp.link.state;
}
-void octep_set_rx_state(struct octep_device *oct, bool up)
+int octep_ctrl_net_set_link_status(struct octep_device *oct, int vfid, bool up,
+ bool wait_for_response)
{
- struct octep_ctrl_net_h2f_req req = {};
- struct octep_ctrl_mbox_msg msg = {};
+ struct octep_ctrl_net_wait_data d = {0};
+ struct octep_ctrl_net_h2f_req *req = &d.data.req;
- req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_RX_STATE;
- req.link.cmd = OCTEP_CTRL_NET_CMD_SET;
- req.link.state = (up) ? OCTEP_CTRL_NET_STATE_UP : OCTEP_CTRL_NET_STATE_DOWN;
+ init_send_req(&d.msg, req, state_sz, vfid);
+ req->hdr.s.cmd = OCTEP_CTRL_NET_H2F_CMD_LINK_STATUS;
+ req->link.cmd = OCTEP_CTRL_NET_CMD_SET;
+ req->link.state = (up) ? OCTEP_CTRL_NET_STATE_UP :
+ OCTEP_CTRL_NET_STATE_DOWN;
- msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ;
- msg.hdr.sizew = OCTEP_CTRL_NET_H2F_STATE_REQ_SZW;
- msg.msg = &req;
- octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg);
+ return send_mbox_req(oct, &d, wait_for_response);
}
-int octep_get_mac_addr(struct octep_device *oct, u8 *addr)
+int octep_ctrl_net_set_rx_state(struct octep_device *oct, int vfid, bool up,
+ bool wait_for_response)
{
- struct octep_ctrl_net_h2f_req req = {};
- struct octep_ctrl_net_h2f_resp *resp;
- struct octep_ctrl_mbox_msg msg = {};
- int err;
+ struct octep_ctrl_net_wait_data d = {0};
+ struct octep_ctrl_net_h2f_req *req = &d.data.req;
+
+ init_send_req(&d.msg, req, state_sz, vfid);
+ req->hdr.s.cmd = OCTEP_CTRL_NET_H2F_CMD_RX_STATE;
+ req->link.cmd = OCTEP_CTRL_NET_CMD_SET;
+ req->link.state = (up) ? OCTEP_CTRL_NET_STATE_UP :
+ OCTEP_CTRL_NET_STATE_DOWN;
- req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_MAC;
- req.link.cmd = OCTEP_CTRL_NET_CMD_GET;
+ return send_mbox_req(oct, &d, wait_for_response);
+}
+
+int octep_ctrl_net_get_mac_addr(struct octep_device *oct, int vfid, u8 *addr)
+{
+ struct octep_ctrl_net_wait_data d = {0};
+ struct octep_ctrl_net_h2f_req *req = &d.data.req;
+ int err;
- msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ;
- msg.hdr.sizew = OCTEP_CTRL_NET_H2F_MAC_REQ_SZW;
- msg.msg = &req;
- err = octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg);
- if (err)
+ init_send_req(&d.msg, req, mac_sz, vfid);
+ req->hdr.s.cmd = OCTEP_CTRL_NET_H2F_CMD_MAC;
+ req->link.cmd = OCTEP_CTRL_NET_CMD_GET;
+ err = send_mbox_req(oct, &d, true);
+ if (err < 0)
return err;
- resp = (struct octep_ctrl_net_h2f_resp *)&req;
- memcpy(addr, resp->mac.addr, ETH_ALEN);
+ memcpy(addr, d.data.resp.mac.addr, ETH_ALEN);
- return err;
+ return 0;
}
-int octep_set_mac_addr(struct octep_device *oct, u8 *addr)
+int octep_ctrl_net_set_mac_addr(struct octep_device *oct, int vfid, u8 *addr,
+ bool wait_for_response)
{
- struct octep_ctrl_net_h2f_req req = {};
- struct octep_ctrl_mbox_msg msg = {};
+ struct octep_ctrl_net_wait_data d = {0};
+ struct octep_ctrl_net_h2f_req *req = &d.data.req;
- req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_MAC;
- req.mac.cmd = OCTEP_CTRL_NET_CMD_SET;
- memcpy(&req.mac.addr, addr, ETH_ALEN);
+ init_send_req(&d.msg, req, mac_sz, vfid);
+ req->hdr.s.cmd = OCTEP_CTRL_NET_H2F_CMD_MAC;
+ req->mac.cmd = OCTEP_CTRL_NET_CMD_SET;
+ memcpy(&req->mac.addr, addr, ETH_ALEN);
- msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ;
- msg.hdr.sizew = OCTEP_CTRL_NET_H2F_MAC_REQ_SZW;
- msg.msg = &req;
-
- return octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg);
+ return send_mbox_req(oct, &d, wait_for_response);
}
-int octep_set_mtu(struct octep_device *oct, int mtu)
+int octep_ctrl_net_set_mtu(struct octep_device *oct, int vfid, int mtu,
+ bool wait_for_response)
{
- struct octep_ctrl_net_h2f_req req = {};
- struct octep_ctrl_mbox_msg msg = {};
-
- req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_MTU;
- req.mtu.cmd = OCTEP_CTRL_NET_CMD_SET;
- req.mtu.val = mtu;
+ struct octep_ctrl_net_wait_data d = {0};
+ struct octep_ctrl_net_h2f_req *req = &d.data.req;
- msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ;
- msg.hdr.sizew = OCTEP_CTRL_NET_H2F_MTU_REQ_SZW;
- msg.msg = &req;
+ init_send_req(&d.msg, req, mtu_sz, vfid);
+ req->hdr.s.cmd = OCTEP_CTRL_NET_H2F_CMD_MTU;
+ req->mtu.cmd = OCTEP_CTRL_NET_CMD_SET;
+ req->mtu.val = mtu;
- return octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg);
+ return send_mbox_req(oct, &d, wait_for_response);
}
-int octep_get_if_stats(struct octep_device *oct)
+int octep_ctrl_net_get_if_stats(struct octep_device *oct, int vfid)
{
void __iomem *iface_rx_stats;
void __iomem *iface_tx_stats;
- struct octep_ctrl_net_h2f_req req = {};
- struct octep_ctrl_mbox_msg msg = {};
+ struct octep_ctrl_net_wait_data d = {0};
+ struct octep_ctrl_net_h2f_req *req = &d.data.req;
int err;
- req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_GET_IF_STATS;
- req.mac.cmd = OCTEP_CTRL_NET_CMD_GET;
- req.get_stats.offset = oct->ctrl_mbox_ifstats_offset;
-
- msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ;
- msg.hdr.sizew = OCTEP_CTRL_NET_H2F_GET_STATS_REQ_SZW;
- msg.msg = &req;
- err = octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg);
- if (err)
+ init_send_req(&d.msg, req, get_stats_sz, vfid);
+ req->hdr.s.cmd = OCTEP_CTRL_NET_H2F_CMD_GET_IF_STATS;
+ req->get_stats.offset = oct->ctrl_mbox_ifstats_offset;
+ err = send_mbox_req(oct, &d, true);
+ if (err < 0)
return err;
iface_rx_stats = oct->ctrl_mbox.barmem + oct->ctrl_mbox_ifstats_offset;
@@ -144,51 +209,115 @@ int octep_get_if_stats(struct octep_device *oct)
memcpy_fromio(&oct->iface_rx_stats, iface_rx_stats, sizeof(struct octep_iface_rx_stats));
memcpy_fromio(&oct->iface_tx_stats, iface_tx_stats, sizeof(struct octep_iface_tx_stats));
- return err;
+ return 0;
}
-int octep_get_link_info(struct octep_device *oct)
+int octep_ctrl_net_get_link_info(struct octep_device *oct, int vfid)
{
- struct octep_ctrl_net_h2f_req req = {};
+ struct octep_ctrl_net_wait_data d = {0};
+ struct octep_ctrl_net_h2f_req *req = &d.data.req;
struct octep_ctrl_net_h2f_resp *resp;
- struct octep_ctrl_mbox_msg msg = {};
int err;
- req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_LINK_INFO;
- req.mac.cmd = OCTEP_CTRL_NET_CMD_GET;
-
- msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ;
- msg.hdr.sizew = OCTEP_CTRL_NET_H2F_LINK_INFO_REQ_SZW;
- msg.msg = &req;
- err = octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg);
- if (err)
+ init_send_req(&d.msg, req, link_info_sz, vfid);
+ req->hdr.s.cmd = OCTEP_CTRL_NET_H2F_CMD_LINK_INFO;
+ req->link_info.cmd = OCTEP_CTRL_NET_CMD_GET;
+ err = send_mbox_req(oct, &d, true);
+ if (err < 0)
return err;
- resp = (struct octep_ctrl_net_h2f_resp *)&req;
+ resp = &d.data.resp;
oct->link_info.supported_modes = resp->link_info.supported_modes;
oct->link_info.advertised_modes = resp->link_info.advertised_modes;
oct->link_info.autoneg = resp->link_info.autoneg;
oct->link_info.pause = resp->link_info.pause;
oct->link_info.speed = resp->link_info.speed;
- return err;
+ return 0;
}
-int octep_set_link_info(struct octep_device *oct, struct octep_iface_link_info *link_info)
+int octep_ctrl_net_set_link_info(struct octep_device *oct, int vfid,
+ struct octep_iface_link_info *link_info,
+ bool wait_for_response)
{
- struct octep_ctrl_net_h2f_req req = {};
- struct octep_ctrl_mbox_msg msg = {};
+ struct octep_ctrl_net_wait_data d = {0};
+ struct octep_ctrl_net_h2f_req *req = &d.data.req;
+
+ init_send_req(&d.msg, req, link_info_sz, vfid);
+ req->hdr.s.cmd = OCTEP_CTRL_NET_H2F_CMD_LINK_INFO;
+ req->link_info.cmd = OCTEP_CTRL_NET_CMD_SET;
+ req->link_info.info.advertised_modes = link_info->advertised_modes;
+ req->link_info.info.autoneg = link_info->autoneg;
+ req->link_info.info.pause = link_info->pause;
+ req->link_info.info.speed = link_info->speed;
+
+ return send_mbox_req(oct, &d, wait_for_response);
+}
+
+static int process_mbox_req(struct octep_device *oct,
+ struct octep_ctrl_mbox_msg *msg)
+{
+ return 0;
+}
+
+static int process_mbox_resp(struct octep_device *oct,
+ struct octep_ctrl_mbox_msg *msg)
+{
+ struct octep_ctrl_net_wait_data *pos, *n;
+
+ list_for_each_entry_safe(pos, n, &oct->ctrl_req_wait_list, list) {
+ if (pos->msg.hdr.s.msg_id == msg->hdr.s.msg_id) {
+ memcpy(&pos->data.resp,
+ msg->sg_list[0].msg,
+ msg->hdr.s.sz);
+ pos->done = 1;
+ wake_up_interruptible_all(&oct->ctrl_req_wait_q);
+ break;
+ }
+ }
+
+ return 0;
+}
+
+int octep_ctrl_net_recv_fw_messages(struct octep_device *oct)
+{
+ static u16 msg_sz = sizeof(union octep_ctrl_net_max_data);
+ union octep_ctrl_net_max_data data = {0};
+ struct octep_ctrl_mbox_msg msg = {0};
+ int ret;
+
+ msg.hdr.s.sz = msg_sz;
+ msg.sg_num = 1;
+ msg.sg_list[0].sz = msg_sz;
+ msg.sg_list[0].msg = &data;
+ while (true) {
+ /* mbox will overwrite msg.hdr.s.sz so initialize it */
+ msg.hdr.s.sz = msg_sz;
+ ret = octep_ctrl_mbox_recv(&oct->ctrl_mbox,
+ (struct octep_ctrl_mbox_msg *)&msg,
+ 1);
+ if (ret <= 0)
+ break;
+
+ if (msg.hdr.s.flags & OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ)
+ process_mbox_req(oct, &msg);
+ else if (msg.hdr.s.flags & OCTEP_CTRL_MBOX_MSG_HDR_FLAG_RESP)
+ process_mbox_resp(oct, &msg);
+ }
+
+ return 0;
+}
+
+int octep_ctrl_net_uninit(struct octep_device *oct)
+{
+ struct octep_ctrl_net_wait_data *pos, *n;
+
+ list_for_each_entry_safe(pos, n, &oct->ctrl_req_wait_list, list)
+ pos->done = 1;
- req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_LINK_INFO;
- req.link_info.cmd = OCTEP_CTRL_NET_CMD_SET;
- req.link_info.info.advertised_modes = link_info->advertised_modes;
- req.link_info.info.autoneg = link_info->autoneg;
- req.link_info.info.pause = link_info->pause;
- req.link_info.info.speed = link_info->speed;
+ wake_up_interruptible_all(&oct->ctrl_req_wait_q);
- msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ;
- msg.hdr.sizew = OCTEP_CTRL_NET_H2F_LINK_INFO_REQ_SZW;
- msg.msg = &req;
+ octep_ctrl_mbox_uninit(&oct->ctrl_mbox);
- return octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg);
+ return 0;
}
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.h b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.h
index f23b58381322..c68cdaa1738b 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.h
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.h
@@ -7,6 +7,8 @@
#ifndef __OCTEP_CTRL_NET_H__
#define __OCTEP_CTRL_NET_H__
+#define OCTEP_CTRL_NET_INVALID_VFID (-1)
+
/* Supported commands */
enum octep_ctrl_net_cmd {
OCTEP_CTRL_NET_CMD_GET = 0,
@@ -45,15 +47,18 @@ enum octep_ctrl_net_f2h_cmd {
OCTEP_CTRL_NET_F2H_CMD_LINK_STATUS,
};
-struct octep_ctrl_net_req_hdr {
- /* sender id */
- u16 sender;
- /* receiver id */
- u16 receiver;
- /* octep_ctrl_net_h2t_cmd */
- u16 cmd;
- /* reserved */
- u16 rsvd0;
+union octep_ctrl_net_req_hdr {
+ u64 words[1];
+ struct {
+ /* sender id */
+ u16 sender;
+ /* receiver id */
+ u16 receiver;
+ /* octep_ctrl_net_h2t_cmd */
+ u16 cmd;
+ /* reserved */
+ u16 rsvd0;
+ } s;
};
/* get/set mtu request */
@@ -110,7 +115,7 @@ struct octep_ctrl_net_h2f_req_cmd_link_info {
/* Host to fw request data */
struct octep_ctrl_net_h2f_req {
- struct octep_ctrl_net_req_hdr hdr;
+ union octep_ctrl_net_req_hdr hdr;
union {
struct octep_ctrl_net_h2f_req_cmd_mtu mtu;
struct octep_ctrl_net_h2f_req_cmd_mac mac;
@@ -121,15 +126,18 @@ struct octep_ctrl_net_h2f_req {
};
} __packed;
-struct octep_ctrl_net_resp_hdr {
- /* sender id */
- u16 sender;
- /* receiver id */
- u16 receiver;
- /* octep_ctrl_net_h2t_cmd */
- u16 cmd;
- /* octep_ctrl_net_reply */
- u16 reply;
+union octep_ctrl_net_resp_hdr {
+ u64 words[1];
+ struct {
+ /* sender id */
+ u16 sender;
+ /* receiver id */
+ u16 receiver;
+ /* octep_ctrl_net_h2t_cmd */
+ u16 cmd;
+ /* octep_ctrl_net_reply */
+ u16 reply;
+ } s;
};
/* get mtu response */
@@ -152,7 +160,7 @@ struct octep_ctrl_net_h2f_resp_cmd_state {
/* Host to fw response data */
struct octep_ctrl_net_h2f_resp {
- struct octep_ctrl_net_resp_hdr hdr;
+ union octep_ctrl_net_resp_hdr hdr;
union {
struct octep_ctrl_net_h2f_resp_cmd_mtu mtu;
struct octep_ctrl_net_h2f_resp_cmd_mac mac;
@@ -170,7 +178,7 @@ struct octep_ctrl_net_f2h_req_cmd_state {
/* Fw to host request data */
struct octep_ctrl_net_f2h_req {
- struct octep_ctrl_net_req_hdr hdr;
+ union octep_ctrl_net_req_hdr hdr;
union {
struct octep_ctrl_net_f2h_req_cmd_state link;
};
@@ -178,122 +186,146 @@ struct octep_ctrl_net_f2h_req {
/* Fw to host response data */
struct octep_ctrl_net_f2h_resp {
- struct octep_ctrl_net_resp_hdr hdr;
+ union octep_ctrl_net_resp_hdr hdr;
};
-/* Size of host to fw octep_ctrl_mbox queue element */
-union octep_ctrl_net_h2f_data_sz {
+/* Max data size to be transferred over mbox */
+union octep_ctrl_net_max_data {
struct octep_ctrl_net_h2f_req h2f_req;
struct octep_ctrl_net_h2f_resp h2f_resp;
-};
-
-/* Size of fw to host octep_ctrl_mbox queue element */
-union octep_ctrl_net_f2h_data_sz {
struct octep_ctrl_net_f2h_req f2h_req;
struct octep_ctrl_net_f2h_resp f2h_resp;
};
-/* size of host to fw data in words */
-#define OCTEP_CTRL_NET_H2F_DATA_SZW ((sizeof(union octep_ctrl_net_h2f_data_sz)) / \
- (sizeof(unsigned long)))
-
-/* size of fw to host data in words */
-#define OCTEP_CTRL_NET_F2H_DATA_SZW ((sizeof(union octep_ctrl_net_f2h_data_sz)) / \
- (sizeof(unsigned long)))
-
-/* size in words of get/set mtu request */
-#define OCTEP_CTRL_NET_H2F_MTU_REQ_SZW 2
-/* size in words of get/set mac request */
-#define OCTEP_CTRL_NET_H2F_MAC_REQ_SZW 2
-/* size in words of get stats request */
-#define OCTEP_CTRL_NET_H2F_GET_STATS_REQ_SZW 2
-/* size in words of get/set state request */
-#define OCTEP_CTRL_NET_H2F_STATE_REQ_SZW 2
-/* size in words of get/set link info request */
-#define OCTEP_CTRL_NET_H2F_LINK_INFO_REQ_SZW 4
-
-/* size in words of get mtu response */
-#define OCTEP_CTRL_NET_H2F_GET_MTU_RESP_SZW 2
-/* size in words of set mtu response */
-#define OCTEP_CTRL_NET_H2F_SET_MTU_RESP_SZW 1
-/* size in words of get mac response */
-#define OCTEP_CTRL_NET_H2F_GET_MAC_RESP_SZW 2
-/* size in words of set mac response */
-#define OCTEP_CTRL_NET_H2F_SET_MAC_RESP_SZW 1
-/* size in words of get state request */
-#define OCTEP_CTRL_NET_H2F_GET_STATE_RESP_SZW 2
-/* size in words of set state request */
-#define OCTEP_CTRL_NET_H2F_SET_STATE_RESP_SZW 1
-/* size in words of get link info request */
-#define OCTEP_CTRL_NET_H2F_GET_LINK_INFO_RESP_SZW 4
-/* size in words of set link info request */
-#define OCTEP_CTRL_NET_H2F_SET_LINK_INFO_RESP_SZW 1
+struct octep_ctrl_net_wait_data {
+ struct list_head list;
+ int done;
+ struct octep_ctrl_mbox_msg msg;
+ union {
+ struct octep_ctrl_net_h2f_req req;
+ struct octep_ctrl_net_h2f_resp resp;
+ } data;
+};
+
+/** Initialize data for ctrl net.
+ *
+ * @param oct: non-null pointer to struct octep_device.
+ *
+ * return value: 0 on success, -errno on error.
+ */
+int octep_ctrl_net_init(struct octep_device *oct);
/** Get link status from firmware.
*
* @param oct: non-null pointer to struct octep_device.
+ * @param vfid: Index of virtual function.
*
* return value: link status 0=down, 1=up.
*/
-int octep_get_link_status(struct octep_device *oct);
+int octep_ctrl_net_get_link_status(struct octep_device *oct, int vfid);
/** Set link status in firmware.
*
* @param oct: non-null pointer to struct octep_device.
+ * @param vfid: Index of virtual function.
* @param up: boolean status.
+ * @param wait_for_response: poll for response.
+ *
+ * return value: 0 on success, -errno on failure
*/
-void octep_set_link_status(struct octep_device *oct, bool up);
+int octep_ctrl_net_set_link_status(struct octep_device *oct, int vfid, bool up,
+ bool wait_for_response);
/** Set rx state in firmware.
*
* @param oct: non-null pointer to struct octep_device.
+ * @param vfid: Index of virtual function.
* @param up: boolean status.
+ * @param wait_for_response: poll for response.
+ *
+ * return value: 0 on success, -errno on failure.
*/
-void octep_set_rx_state(struct octep_device *oct, bool up);
+int octep_ctrl_net_set_rx_state(struct octep_device *oct, int vfid, bool up,
+ bool wait_for_response);
/** Get mac address from firmware.
*
* @param oct: non-null pointer to struct octep_device.
+ * @param vfid: Index of virtual function.
* @param addr: non-null pointer to mac address.
*
* return value: 0 on success, -errno on failure.
*/
-int octep_get_mac_addr(struct octep_device *oct, u8 *addr);
+int octep_ctrl_net_get_mac_addr(struct octep_device *oct, int vfid, u8 *addr);
/** Set mac address in firmware.
*
* @param oct: non-null pointer to struct octep_device.
+ * @param vfid: Index of virtual function.
* @param addr: non-null pointer to mac address.
+ * @param wait_for_response: poll for response.
+ *
+ * return value: 0 on success, -errno on failure.
*/
-int octep_set_mac_addr(struct octep_device *oct, u8 *addr);
+int octep_ctrl_net_set_mac_addr(struct octep_device *oct, int vfid, u8 *addr,
+ bool wait_for_response);
/** Set mtu in firmware.
*
* @param oct: non-null pointer to struct octep_device.
+ * @param vfid: Index of virtual function.
* @param mtu: mtu.
+ * @param wait_for_response: poll for response.
+ *
+ * return value: 0 on success, -errno on failure.
*/
-int octep_set_mtu(struct octep_device *oct, int mtu);
+int octep_ctrl_net_set_mtu(struct octep_device *oct, int vfid, int mtu,
+ bool wait_for_response);
/** Get interface statistics from firmware.
*
* @param oct: non-null pointer to struct octep_device.
+ * @param vfid: Index of virtual function.
*
* return value: 0 on success, -errno on failure.
*/
-int octep_get_if_stats(struct octep_device *oct);
+int octep_ctrl_net_get_if_stats(struct octep_device *oct, int vfid);
/** Get link info from firmware.
*
* @param oct: non-null pointer to struct octep_device.
+ * @param vfid: Index of virtual function.
*
* return value: 0 on success, -errno on failure.
*/
-int octep_get_link_info(struct octep_device *oct);
+int octep_ctrl_net_get_link_info(struct octep_device *oct, int vfid);
/** Set link info in firmware.
*
* @param oct: non-null pointer to struct octep_device.
+ * @param vfid: Index of virtual function.
+ * @param link_info: non-null pointer to struct octep_iface_link_info.
+ * @param wait_for_response: poll for response.
+ *
+ * return value: 0 on success, -errno on failure.
+ */
+int octep_ctrl_net_set_link_info(struct octep_device *oct,
+ int vfid,
+ struct octep_iface_link_info *link_info,
+ bool wait_for_response);
+
+/** Poll for firmware messages and process them.
+ *
+ * @param oct: non-null pointer to struct octep_device.
+ */
+int octep_ctrl_net_recv_fw_messages(struct octep_device *oct);
+
+/** Uninitialize data for ctrl net.
+ *
+ * @param oct: non-null pointer to struct octep_device.
+ *
+ * return value: 0 on success, -errno on error.
*/
-int octep_set_link_info(struct octep_device *oct, struct octep_iface_link_info *link_info);
+int octep_ctrl_net_uninit(struct octep_device *oct);
#endif /* __OCTEP_CTRL_NET_H__ */
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ethtool.c b/drivers/net/ethernet/marvell/octeon_ep/octep_ethtool.c
index 87ef129b269a..389042b57787 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_ethtool.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ethtool.c
@@ -150,7 +150,7 @@ octep_get_ethtool_stats(struct net_device *netdev,
rx_packets = 0;
rx_bytes = 0;
- octep_get_if_stats(oct);
+ octep_ctrl_net_get_if_stats(oct, OCTEP_CTRL_NET_INVALID_VFID);
iface_tx_stats = &oct->iface_tx_stats;
iface_rx_stats = &oct->iface_rx_stats;
@@ -283,7 +283,7 @@ static int octep_get_link_ksettings(struct net_device *netdev,
ethtool_link_ksettings_zero_link_mode(cmd, supported);
ethtool_link_ksettings_zero_link_mode(cmd, advertising);
- octep_get_link_info(oct);
+ octep_ctrl_net_get_link_info(oct, OCTEP_CTRL_NET_INVALID_VFID);
advertised_modes = oct->link_info.advertised_modes;
supported_modes = oct->link_info.supported_modes;
@@ -439,7 +439,8 @@ static int octep_set_link_ksettings(struct net_device *netdev,
link_info_new.speed = cmd->base.speed;
link_info_new.autoneg = autoneg;
- err = octep_set_link_info(oct, &link_info_new);
+ err = octep_ctrl_net_set_link_info(oct, OCTEP_CTRL_NET_INVALID_VFID,
+ &link_info_new, true);
if (err)
return err;
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
index c07588461030..32e2ca24849a 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
@@ -508,11 +508,10 @@ static int octep_open(struct net_device *netdev)
octep_napi_enable(oct);
oct->link_info.admin_up = 1;
- octep_set_rx_state(oct, true);
-
- ret = octep_get_link_status(oct);
- if (!ret)
- octep_set_link_status(oct, true);
+ octep_ctrl_net_set_rx_state(oct, OCTEP_CTRL_NET_INVALID_VFID, true,
+ false);
+ octep_ctrl_net_set_link_status(oct, OCTEP_CTRL_NET_INVALID_VFID, true,
+ false);
oct->poll_non_ioq_intr = false;
/* Enable the input and output queues for this Octeon device */
@@ -523,7 +522,7 @@ static int octep_open(struct net_device *netdev)
octep_oq_dbell_init(oct);
- ret = octep_get_link_status(oct);
+ ret = octep_ctrl_net_get_link_status(oct, OCTEP_CTRL_NET_INVALID_VFID);
if (ret > 0)
octep_link_up(netdev);
@@ -553,14 +552,16 @@ static int octep_stop(struct net_device *netdev)
netdev_info(netdev, "Stopping the device ...\n");
+ octep_ctrl_net_set_link_status(oct, OCTEP_CTRL_NET_INVALID_VFID, false,
+ false);
+ octep_ctrl_net_set_rx_state(oct, OCTEP_CTRL_NET_INVALID_VFID, false,
+ false);
+
/* Stop Tx from stack */
netif_tx_stop_all_queues(netdev);
netif_carrier_off(netdev);
netif_tx_disable(netdev);
- octep_set_link_status(oct, false);
- octep_set_rx_state(oct, false);
-
oct->link_info.admin_up = 0;
oct->link_info.oper_up = 0;
@@ -762,7 +763,9 @@ static void octep_get_stats64(struct net_device *netdev,
struct octep_device *oct = netdev_priv(netdev);
int q;
- octep_get_if_stats(oct);
+ if (netif_running(netdev))
+ octep_ctrl_net_get_if_stats(oct, OCTEP_CTRL_NET_INVALID_VFID);
+
tx_packets = 0;
tx_bytes = 0;
rx_packets = 0;
@@ -833,7 +836,8 @@ static int octep_set_mac(struct net_device *netdev, void *p)
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
- err = octep_set_mac_addr(oct, addr->sa_data);
+ err = octep_ctrl_net_set_mac_addr(oct, OCTEP_CTRL_NET_INVALID_VFID,
+ addr->sa_data, true);
if (err)
return err;
@@ -853,7 +857,8 @@ static int octep_change_mtu(struct net_device *netdev, int new_mtu)
if (link_info->mtu == new_mtu)
return 0;
- err = octep_set_mtu(oct, new_mtu);
+ err = octep_ctrl_net_set_mtu(oct, OCTEP_CTRL_NET_INVALID_VFID, new_mtu,
+ true);
if (!err) {
oct->link_info.mtu = new_mtu;
netdev->mtu = new_mtu;
@@ -905,34 +910,8 @@ static void octep_ctrl_mbox_task(struct work_struct *work)
{
struct octep_device *oct = container_of(work, struct octep_device,
ctrl_mbox_task);
- struct net_device *netdev = oct->netdev;
- struct octep_ctrl_net_f2h_req req = {};
- struct octep_ctrl_mbox_msg msg;
- int ret = 0;
-
- msg.msg = &req;
- while (true) {
- ret = octep_ctrl_mbox_recv(&oct->ctrl_mbox, &msg);
- if (ret)
- break;
-
- switch (req.hdr.cmd) {
- case OCTEP_CTRL_NET_F2H_CMD_LINK_STATUS:
- if (netif_running(netdev)) {
- if (req.link.state) {
- dev_info(&oct->pdev->dev, "netif_carrier_on\n");
- netif_carrier_on(netdev);
- } else {
- dev_info(&oct->pdev->dev, "netif_carrier_off\n");
- netif_carrier_off(netdev);
- }
- }
- break;
- default:
- pr_info("Unknown mbox req : %u\n", req.hdr.cmd);
- break;
- }
- }
+
+ octep_ctrl_net_recv_fw_messages(oct);
}
static const char *octep_devid_to_str(struct octep_device *oct)
@@ -956,7 +935,6 @@ static const char *octep_devid_to_str(struct octep_device *oct)
*/
int octep_device_setup(struct octep_device *oct)
{
- struct octep_ctrl_mbox *ctrl_mbox;
struct pci_dev *pdev = oct->pdev;
int i, ret;
@@ -993,18 +971,9 @@ int octep_device_setup(struct octep_device *oct)
oct->pkind = CFG_GET_IQ_PKIND(oct->conf);
- /* Initialize control mbox */
- ctrl_mbox = &oct->ctrl_mbox;
- ctrl_mbox->barmem = CFG_GET_CTRL_MBOX_MEM_ADDR(oct->conf);
- ret = octep_ctrl_mbox_init(ctrl_mbox);
- if (ret) {
- dev_err(&pdev->dev, "Failed to initialize control mbox\n");
- goto unsupported_dev;
- }
- oct->ctrl_mbox_ifstats_offset = OCTEP_CTRL_MBOX_SZ(ctrl_mbox->h2fq.elem_sz,
- ctrl_mbox->h2fq.elem_cnt,
- ctrl_mbox->f2hq.elem_sz,
- ctrl_mbox->f2hq.elem_cnt);
+ ret = octep_ctrl_net_init(oct);
+ if (ret)
+ return ret;
return 0;
@@ -1034,7 +1003,7 @@ static void octep_device_cleanup(struct octep_device *oct)
oct->mbox[i] = NULL;
}
- octep_ctrl_mbox_uninit(&oct->ctrl_mbox);
+ octep_ctrl_net_uninit(oct);
oct->hw_ops.soft_reset(oct);
for (i = 0; i < OCTEP_MMIO_REGIONS; i++) {
@@ -1145,7 +1114,8 @@ static int octep_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
netdev->max_mtu = OCTEP_MAX_MTU;
netdev->mtu = OCTEP_DEFAULT_MTU;
- err = octep_get_mac_addr(octep_dev, octep_dev->mac_addr);
+ err = octep_ctrl_net_get_mac_addr(octep_dev, OCTEP_CTRL_NET_INVALID_VFID,
+ octep_dev->mac_addr);
if (err) {
dev_err(&pdev->dev, "Failed to get mac address\n");
goto register_dev_err;
--
2.36.0
On Tue, Nov 29, 2022 at 05:09:24AM -0800, Veerasenareddy Burru wrote:
> Defer probe if firmware is not ready for device usage.
>
> Signed-off-by: Veerasenareddy Burru <[email protected]>
> Signed-off-by: Abhijit Ayarekar <[email protected]>
> Signed-off-by: Satananda Burla <[email protected]>
> ---
> v1 -> v2:
> * was scheduling workqueue task to wait for firmware ready,
> to probe/initialize the device.
> * now, removed the workqueue task; the probe returns EPROBE_DEFER,
> if firmware is not ready.
> * removed device status oct->status, as it is not required with the
> modified implementation.
>
> .../ethernet/marvell/octeon_ep/octep_main.c | 26 +++++++++++++++++++
> 1 file changed, 26 insertions(+)
>
> diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
> index 5a898fb88e37..aa7d0ced9807 100644
> --- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
> +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
> @@ -1017,6 +1017,25 @@ static void octep_device_cleanup(struct octep_device *oct)
> oct->conf = NULL;
> }
>
> +static u8 get_fw_ready_status(struct pci_dev *pdev)
Please change this function to return bool, you are not interested in
status.
> +{
> + u32 pos = 0;
> + u16 vsec_id;
> + u8 status;
> +
> + while ((pos = pci_find_next_ext_capability(pdev, pos,
> + PCI_EXT_CAP_ID_VNDR))) {
> + pci_read_config_word(pdev, pos + 4, &vsec_id);
> +#define FW_STATUS_VSEC_ID 0xA3
> + if (vsec_id == FW_STATUS_VSEC_ID) {
Success oriented flow, plase
if (vsec_id != FW_STATUS_VSEC_ID)
cotitnue;
....
> + pci_read_config_byte(pdev, (pos + 8), &status);
> + dev_info(&pdev->dev, "Firmware ready %u\n", status);
> + return status;
> + }
> + }
> + return 0;
> +}
> +
> /**
> * octep_probe() - Octeon PCI device probe handler.
> *
> @@ -1053,6 +1072,13 @@ static int octep_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> pci_enable_pcie_error_reporting(pdev);
> pci_set_master(pdev);
>
> +#define FW_STATUS_READY 1
> + if (get_fw_ready_status(pdev) != FW_STATUS_READY) {
No need to this new define if you change get_fw_ready_status() to return
true/false.
And I think that you can put this check earlier in octep_probe().
Thanks
> + dev_notice(&pdev->dev, "Firmware not ready; defer probe.\n");
> + err = -EPROBE_DEFER;
> + goto err_alloc_netdev;
> + }
> +
> netdev = alloc_etherdev_mq(sizeof(struct octep_device),
> OCTEP_MAX_QUEUES);
> if (!netdev) {
> --
> 2.36.0
>
> -----Original Message-----
> From: Leon Romanovsky <[email protected]>
> Sent: Wednesday, November 30, 2022 1:25 AM
> To: Veerasenareddy Burru <[email protected]>
> Cc: [email protected]; [email protected]; Liron Himi
> <[email protected]>; Abhijit Ayarekar <[email protected]>; Sathesh
> B Edara <[email protected]>; Satananda Burla <[email protected]>;
> [email protected]; David S. Miller <[email protected]>; Eric
> Dumazet <[email protected]>; Jakub Kicinski <[email protected]>;
> Paolo Abeni <[email protected]>
> Subject: [EXT] Re: [PATCH net-next v2 1/9] octeon_ep: defer probe if
> firmware not ready
>
> External Email
>
> ----------------------------------------------------------------------
> On Tue, Nov 29, 2022 at 05:09:24AM -0800, Veerasenareddy Burru wrote:
> > Defer probe if firmware is not ready for device usage.
> >
> > Signed-off-by: Veerasenareddy Burru <[email protected]>
> > Signed-off-by: Abhijit Ayarekar <[email protected]>
> > Signed-off-by: Satananda Burla <[email protected]>
> > ---
> > v1 -> v2:
> > * was scheduling workqueue task to wait for firmware ready,
> > to probe/initialize the device.
> > * now, removed the workqueue task; the probe returns EPROBE_DEFER,
> > if firmware is not ready.
> > * removed device status oct->status, as it is not required with the
> > modified implementation.
> >
> > .../ethernet/marvell/octeon_ep/octep_main.c | 26
> +++++++++++++++++++
> > 1 file changed, 26 insertions(+)
> >
> > diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
> > b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
> > index 5a898fb88e37..aa7d0ced9807 100644
> > --- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
> > +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
> > @@ -1017,6 +1017,25 @@ static void octep_device_cleanup(struct
> octep_device *oct)
> > oct->conf = NULL;
> > }
> >
> > +static u8 get_fw_ready_status(struct pci_dev *pdev)
>
> Please change this function to return bool, you are not interested in status.
>
Yes, we can just return bool; Thanks for the suggestion. Will implement this.
> > +{
> > + u32 pos = 0;
> > + u16 vsec_id;
> > + u8 status;
> > +
> > + while ((pos = pci_find_next_ext_capability(pdev, pos,
> > + PCI_EXT_CAP_ID_VNDR))) {
> > + pci_read_config_word(pdev, pos + 4, &vsec_id); #define
> > +FW_STATUS_VSEC_ID 0xA3
> > + if (vsec_id == FW_STATUS_VSEC_ID) {
>
> Success oriented flow, plase
> if (vsec_id != FW_STATUS_VSEC_ID)
> cotitnue;
>
> ....
>
Sure, will change this.
> > + pci_read_config_byte(pdev, (pos + 8), &status);
> > + dev_info(&pdev->dev, "Firmware ready %u\n",
> status);
> > + return status;
> > + }
> > + }
> > + return 0;
> > +}
> > +
> > /**
> > * octep_probe() - Octeon PCI device probe handler.
> > *
> > @@ -1053,6 +1072,13 @@ static int octep_probe(struct pci_dev *pdev,
> const struct pci_device_id *ent)
> > pci_enable_pcie_error_reporting(pdev);
> > pci_set_master(pdev);
> >
> > +#define FW_STATUS_READY 1
> > + if (get_fw_ready_status(pdev) != FW_STATUS_READY) {
>
> No need to this new define if you change get_fw_ready_status() to return
> true/false.
We will change this to true/false.
>
> And I think that you can put this check earlier in octep_probe().
We will check and move this to earlier point in octep_probe().
Thanks
>
> Thanks
>
> > + dev_notice(&pdev->dev, "Firmware not ready; defer
> probe.\n");
> > + err = -EPROBE_DEFER;
> > + goto err_alloc_netdev;
> > + }
> > +
> > netdev = alloc_etherdev_mq(sizeof(struct octep_device),
> > OCTEP_MAX_QUEUES);
> > if (!netdev) {
> > --
> > 2.36.0
> >